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The effect of body condition of gilts at first mating on long-term sow production

  • C M Challinor (a1), G Dams (a1), B Edwards (a1) and W H Close (a2)

Extract

The body condition of the gilt at first mating may have a significant effect upon its lifetime reproductive performance. (Gueblez et al, 1985). Gaughan et al (1995), have recently demonstrated that gilts with low backfat thickness (9- 13mm) had fewer litters and weaned fewer piglets than gilts with medium (14-16mm) and high (>17mm) levels. The extent to which variations in both body weight and backfat thickness of gilts at first mating influence long-term reproductive efficiency has been further investigated in a commercial trial at the JSR Commercial Development Unit, Catwick. The overall objective of the trial was to assess the long-term performance of modern pig genotypes under commercial conditions.

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Gueblez, R and Geslin, M (1985). J. Rech. Pore, France. 17,113120.
Gaughan, J B; Cameron, R D A; Dryden, G McL and Josey, M J (1995). Animal Science 61. 561564.

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